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Finishing using TiO2-nanosol treatment of cellulose acetate CA fabrics before and after the latter were pretreated with H2O2was undertaken with a view to impart unique properties to CA fabrics, notably, self-cleaning. Finishing was performed as per the pad-dry-cure method. The finishing treatment involved dispersing the nano-sized TiO2particles in a mixture of water and ethylene glycol 1:1 and application of the dispersions to CA fabrics was made under a variety of conditions. Self cleaning ability of the fabrics is favored by 1 increasing the concentration of TiO2-nanosol to certain limit; 2 prolongation of curing time up to 15 second; 3 raising the microwave power from 80% to 100% but with the certainty that power of 90% is the most proper. Besides, exposure time-to UV radiation-up to 90 minutes is essential to have remarkable self cleaning properties while keeping other technical properties, namely, strength, roughness and wettability practically unaltered. Incorporation of binder in the finishing pad-bath helps stabilizing the deposition of TiO2 with excellent self-cleaning. Pretreatment of CA fabrics with H2O2 is a pre requisite to guarantee excellent self-cleaning ability. Thermofixation and microwave fixation produces fabrics with very comparable technical properties.

KEYWORDS

Self-Cleaning; Cellulose Acetate; Microwave; Thermofixation; Tio2-Nano Particles

Cite this paper

M. Ramadan, W. Raslan, E. El-Khatib and A. Hebeish -Rendering of Cellulose Acetate Fabrics Self-Cleaning through Treatment with TiO2 Nano Particles,- Materials Sciences and Applications, Vol. 3 No. 12, 2012, pp. 872-879. doi: 10.4236-msa.2012.312127.





Autor: M. A. Ramadan, W. M. Raslan, E. M. El-Khatib, A. Hebeish

Fuente: http://www.scirp.org/



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